Intermittently, when calling my Vonage # and I'm sent to Vonage's v-mail system, I will hear an unintelligible (garbled) outbound voicemail message. It lasts for the duration of the outbound message (it never clears up mid-message) and doesn't necessarily result in a garbled message in my v-mail Inbox (although THAT is an occassional problem as well).

Has anyone else experienced this problem and, if so, do you know if there are plans to investigate/resolve it?

I experienced similar problems with my Vonage voicemail a couple weeks ago. Had a couple people complain and confirmed it myself. It's seems very intermittent. One minute it may happen and a second call a few minutes later it's fine.

According to Vonage, they are doing some network upgrades so hopefully this is a temporary issue. Has not happened to me for the last couple weeks.

I have some experience with Asterisk voicemail and it sounds to me like an overloaded voicemail server. Hopefully the network upgrades they are doing includes increasing voicemail capacity.